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ANSI/EASA AR100-2020 cover

ANSI/EASA Standard AR100-2020
ANSI/EASA AR100-2020: Recommended Practice for the Repair of Rotating Electrical Apparatus is a must-have guide to the repair of rotating electrical machines. It establishes recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

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Questions?

For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
+1 314 993 2220
mhowell@easa.com

ANSI Accredited Standards Developer Information

Performing an Insulation Resistance Test

  • March 2023
  • Number of views: 8178
  • Article rating: 4.0

This video explains how to check the ground insulation of an AC motor winding using the insulation resistance (IR) test.

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How to Set Brush Neutral on a DC Machine

  • March 2023
  • Number of views: 5252
  • Article rating: 3.0

This video shows how to adjust the brush neutral position of a DC machine to prevent sparking at the brushes at full load.

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Measuring a Bearing Journal

  • March 2023
  • Number of views: 4815
  • Article rating: 1.0

This video explains how to measure the diameter of a bearing journal accurately to within five hundred-thousandths of an inch or one-thousandth of a millimeter.

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Adjusting End Play on Vertical Pump Motors

  • January 2024
  • Number of views: 4438
  • Article rating: 1.5

This video walks through the steps to adjust and set end play on a typical vertical hollow shaft pump motor.

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How to Measure Magnet Wire

  • March 2023
  • Number of views: 3429
  • Article rating: No rating

This video shows one step in collecting motor winding data: how to measure magnet wire.

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EASA Rewind Study cover

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

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EASA Good Practice Guide

Good Practice Guide to Maintain Motor Efficiency
Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors

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